In most cases yes. Although a few species of Orchids grow roots any which way and don't grow in soil. roots can sense gravity, take them into space and they grow every which way
http://wiki.answers.com/Q/Do_roots_from_plants_always_g...
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it has to do with tropism. In this case its geotropism. plants always have their roots growing down because if they didn't grow down, they wouldnt support a plant very well. the stem always grows up, generally for the same reason, but also ...
http://wiki.answers.com/Q/Why_do_the_roots_of_a_plant_a...
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Since Darwinian times, scientists have tried to get a handle on how plants are able to direct roots to always grow downward in search of the earth, and shoots to grow upwards in search of the sun. So great is the plant's directive that if a root is reoriented to lie horizontal to the surface of the earth, or in other...
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www.sciencedaily.com/releases/1998/07/980727080920.htm
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The results indicate that this hypothesis should be rejected. Although some of the plant stems did turn upward, the 135° plants seemed to turn downward. ... Plant roots always tend to grow downward, so a germinating seed can be turned upside-down, and the roots would still grow downward. This is also because of...
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www.selah.k12.wa.us/SOAR/SciProj2001/AnnieM.html
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Good science projects start with a question. What interests you? What have you always wanted to know? These are just ideas to help you get started. The categories are loose and you may find your favorite idea in any of them. ... In what type of soil do plants grow best? ... Do roots of a plant always grow downward?
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www.agclassroom.org/teacher/sci_ideas.htm
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Biennial; These types of plants have a two year life cycle. The plant grows the first year, and flowers or grows fruits during the ... Radicle; This is the first part to emerge from the seed during germination, considered the embryonic root of the plant. The radicle, once emerged, always grows downward in the soil.
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www.discoverplants.com/plant-terminology.php
www.discoverplants.com/plant-terminology.php
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Does temperature affect the growth of plants? ... What kind of wildflower grows best under artificial light? ... Do roots of a plant always grow downward?
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www.indianchild.com/science_fair_project_ideas.htm
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The Chinese have always placed a high value on ginseng and millions have used it for centuries. ... One year old plants will have 3 leaflets, ... In its wild, natural state, it grows in cool, shady, hardwood forest that takes about 6 to 8 years to grow to the point where its roots are large enough to harvest. About 4 or 5 years if...
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www.wildgrown.com/root.htm
www.wildgrown.com/root.htm
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Yes the roots always grow down because of gravity and they are seeking water ... More in Plants & Botany ... What Grows Faster A Plant In Light Or Dark?
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www.blurtit.com/q3417380.html
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